Blue Origin said Sunday that it lost a set of powerpack hardware for its BE-4 engine during a ground test mishap, dealing at least a minor setback to the development of a powerful U.S.-made propulsion system that United Launch Alliance says is the leading candidate to power the first stage of its next-generation Vulcan rocket.

Boeing said Tuesday it is “making excellent progress” toward launching a second unpiloted test flight of its Starliner crew capsule to the International Space Station by the end of this year or in early January, setting the stage for the first Starliner demonstration mission with astronauts in mid-2021.

OneWeb’s next 36 internet satellites stacked on top of a Soyuz rocket lifted at 10:47 p.m. EDT Wednesday (0247 GMT Thursday) from the Vostochny Cosmodrome in Russia’s Far East.